/Engine/Source/Runtime/SlateCore/Public/Widgets/SWidget.h
Protected static helper to allow widgets to access the visibility attribute of other widgets directly
static [TAttribute](API\Runtime\Core\Misc\TAttribute)< [EVisibility](API\Runtime\SlateCore\Layout\EVisibility) > AccessWidgetVisibilityAttribute ( const [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [SWidget](API\Runtime\SlateCore\Widgets\SWidget) > & Widget )